Chapter 1: Review: The OSI Reference Model and Routing Commands:
ip address | Sets the logical network address of the interface.
network | Assigns a NIC-based address to which the router is directly connected. Associates networks with an IGRP routing process. Enables Enhanced IGRP on a network in IPX router configuration mode.
network<network-number> | Specifies a directly connected network.
ping | Sends ICMP echo request packets to another node on the network. Checks host reachability and network connectivity. Diagnoses basic network connectivity.
router<protocol> | Defines an IP routing protocol, which can be either RIP, Interior Gateway Routing Protocol (IGRP), Open Shortest Path First (OSPF), or Enhanced IGRP.
router rip | Selects RIP as the routing protocol.
term ip netmask-format | Specifies the format in which network masks are displayed in show command output.